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in Mathematics by (50.1k points)

यदि \(A = [a_{ij}]\) एक 3 × 3 आव्यूह है, जिसमें \(a_{ij} = i - 3j\) है, तो निम्नलिखित में से कौन-सा गलत है ?

(A) \(a_{11} < 0\)

(B) \(a_{12} + a_{21} = - 6\)

(C) \(a_{13} > a_{31}\)

(D) \(a_{31} = 0\)

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1 Answer

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by (49.9k points)
edited by

सही विकल्प है (C) \(a_{13} > a_{31}\) 

(A) \(a_{11} = 1 - 3 = -1 < 0\)  (True)

(B) \(a_{12} + a_{21} = 1 - 3 \times 2 + 2-3\times 1 = -6\)  (True)

(C) \(a_{13} > a_{31} \to 1 - 3\times 3 > 3 - 3\times 1 \to -8>0\)  (False)

(D) \(a_{31} = 3 - 3 \times 1 = 0\)  (True)

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